| 摘要 |
The present invention provides a one-way clutch comprising an outer race provided with a pocket, an inner race arranged coaxially with the outer race, a roller adapted to transmit torque between the outer race and the inner race, a cage having a cylindrical portion with a window and a flange portion extending from the cylindrical portion in an outer diameter direction, the window being adapted to hold the roller and enclosed at its four sides, a spring disposed in the pocket between the outer race and the roller and adapted to bias the roller toward an engagement direction with respect to the cam surface, and a side plate secured to abut against an axial one end face of the outer race and provided at its inner diameter portion with spline grooves, and wherein the side plate has at least one grooved portion having one end communicated with the pocket of the outer race and the other end opened to an outer diameter end of the side plate.
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